MediaWiki:Common.js
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Note: After saving, you may have to bypass your browser's cache to see the changes.
- Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
- Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
- Internet Explorer: Hold Ctrl while clicking Refresh, or press Ctrl-F5
- Opera: Go to Menu → Settings (Opera → Preferences on a Mac) and then to Privacy & security → Clear browsing data → Cached images and files.
/* Any JavaScript here will be loaded for all users on every page load. */
const backToTop = document.getElementById("BackToTop");
if (backToTop) {
document.addEventListener("scroll", function() {
const isVisible = window.pageYOffset > 400;
backToTop.style.opacity = isVisible ? '1' : '0';
});
/*backToTop.addEventListener("transitionstart", function() {
backToTop.style.display = "block";
});
backToTop.addEventListener("transitionend", function() {
if (backToTop.style.opacity == 0) backToTop.style.display = "none";
});*/
}